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Diffstat (limited to 'include/net/flow_dissector.h')
-rw-r--r--include/net/flow_dissector.h67
1 files changed, 17 insertions, 50 deletions
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index 1a8c22419..8c8548cf5 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -2,7 +2,6 @@
#define _NET_FLOW_DISSECTOR_H
#include <linux/types.h>
-#include <linux/skbuff.h>
#include <linux/in6.h>
#include <uapi/linux/if_ether.h>
@@ -13,8 +12,13 @@
struct flow_dissector_key_control {
u16 thoff;
u16 addr_type;
+ u32 flags;
};
+#define FLOW_DIS_IS_FRAGMENT BIT(0)
+#define FLOW_DIS_FIRST_FRAG BIT(1)
+#define FLOW_DIS_ENCAPSULATION BIT(2)
+
/**
* struct flow_dissector_key_basic:
* @thoff: Transport header offset
@@ -123,6 +127,11 @@ enum flow_dissector_key_id {
FLOW_DISSECTOR_KEY_MAX,
};
+#define FLOW_DISSECTOR_F_PARSE_1ST_FRAG BIT(0)
+#define FLOW_DISSECTOR_F_STOP_AT_L3 BIT(1)
+#define FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL BIT(2)
+#define FLOW_DISSECTOR_F_STOP_AT_ENCAP BIT(3)
+
struct flow_dissector_key {
enum flow_dissector_key_id key_id;
size_t offset; /* offset of struct flow_dissector_key_*
@@ -134,23 +143,6 @@ struct flow_dissector {
unsigned short int offset[FLOW_DISSECTOR_KEY_MAX];
};
-void skb_flow_dissector_init(struct flow_dissector *flow_dissector,
- const struct flow_dissector_key *key,
- unsigned int key_count);
-
-bool __skb_flow_dissect(const struct sk_buff *skb,
- struct flow_dissector *flow_dissector,
- void *target_container,
- void *data, __be16 proto, int nhoff, int hlen);
-
-static inline bool skb_flow_dissect(const struct sk_buff *skb,
- struct flow_dissector *flow_dissector,
- void *target_container)
-{
- return __skb_flow_dissect(skb, flow_dissector, target_container,
- NULL, 0, 0, 0);
-}
-
struct flow_keys {
struct flow_dissector_key_control control;
#define FLOW_KEYS_HASH_START_FIELD basic
@@ -170,38 +162,6 @@ __be32 flow_get_u32_dst(const struct flow_keys *flow);
extern struct flow_dissector flow_keys_dissector;
extern struct flow_dissector flow_keys_buf_dissector;
-static inline bool skb_flow_dissect_flow_keys(const struct sk_buff *skb,
- struct flow_keys *flow)
-{
- memset(flow, 0, sizeof(*flow));
- return __skb_flow_dissect(skb, &flow_keys_dissector, flow,
- NULL, 0, 0, 0);
-}
-
-static inline bool skb_flow_dissect_flow_keys_buf(struct flow_keys *flow,
- void *data, __be16 proto,
- int nhoff, int hlen)
-{
- memset(flow, 0, sizeof(*flow));
- return __skb_flow_dissect(NULL, &flow_keys_buf_dissector, flow,
- data, proto, nhoff, hlen);
-}
-
-__be32 __skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto,
- void *data, int hlen_proto);
-
-static inline __be32 skb_flow_get_ports(const struct sk_buff *skb,
- int thoff, u8 ip_proto)
-{
- return __skb_flow_get_ports(skb, thoff, ip_proto, NULL, 0);
-}
-
-u32 flow_hash_from_keys(struct flow_keys *keys);
-void __skb_get_hash(struct sk_buff *skb);
-u32 skb_get_poff(const struct sk_buff *skb);
-u32 __skb_get_poff(const struct sk_buff *skb, void *data,
- const struct flow_keys *keys, int hlen);
-
/* struct flow_keys_digest:
*
* This structure is used to hold a digest of the full flow keys. This is a
@@ -217,4 +177,11 @@ struct flow_keys_digest {
void make_flow_keys_digest(struct flow_keys_digest *digest,
const struct flow_keys *flow);
+static inline bool flow_keys_have_l4(struct flow_keys *keys)
+{
+ return (keys->ports.ports || keys->tags.flow_label);
+}
+
+u32 flow_hash_from_keys(struct flow_keys *keys);
+
#endif